Oxygen Vacancy Dependence of Magnetic Behavior in the LaAlO3/SrTiO3 Heterostructures. Issue 20 (4th September 2016)

• Record Type: Journal Article
• Authors: Hu, Hai‐Long; Ao, Lei; Pham, Anh; Wang, Danyang; Wang, Yu; Chen, Zhigang; Kong, Charlie; Tan, Thiam Teck; Zu, Xiaotao; Li, Sean
• Is Part Of: Advanced materials interfaces. Volume 3:Issue 20(2016)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2016-09-04
• Subjects: LaAlO3/SrTiO3 heterostructures -- magnetic behavior -- oxygen partial pressure -- oxygen vacancy -- robust ferromagnetic state; Materials science -- Periodicals; 620.11
• DOI: 10.1002/admi.201600547
• Languages: English
• ISSNs: 2196-7350

Abstract

Abstract : The discovery of magnetism at the LaAlO3 /SrTiO3 heterostructures has attracted a lot of interests in regards to the origin of magnetic properties appearing in this nonmagnetic system. In this paper, the existence of a robust ferromagnetic state in the LaAlO3 /SrTiO3 heterostructures is demonstrated. The oxygen vacancy dependence of magnetic phenomena demonstrates the correlation between the magnetic properties and the oxygen vacancies. The strong ferromagnetism can be also manipulated by controlling the partial pressure of oxygen during the film deposition process. The well‐controlled magnetism may open an avenue for the applications of magnetic storage and spintronics with the LaAlO3 /SrTiO3 heterostructures. Abstract : The oxygen vacancy dependence of magnetic phenomena demonstrates the correlation between the magnetic properties and the oxygen vacancies. The strong ferromagnetism can be manipulated by controlling the partial pressure of oxygen during the film deposition process. Tuning of magnetism through changing the growth oxygen partial pressure is a feasible strategy in designing magnetic storage and spintronic devices with LaAlO3 /SrTiO3 heterostructures.